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Los Angeles River Upper Reach 2 Coordinated Integrated Monitoring Program Implementation

Through the Gateway Water Management Authority (GWMA), CWE is providing the Los Angeles River Upper Reach 2 Watershed Management Area (LAR UR2 WMA), with Municipal Separate Storm Sewer System (MS4) National Pollutant Discharge Elimination System (NPDES) Permit Coordinated Integrated Monitoring Program (CIMP) implementation services. This group is comprised of the Cities of Bell, Bell Gardens, Commerce, Cudahy, Huntington Park, Maywood, and Vernon, and the Los Angeles County Flood Control District (LACFCD). Services provided have included project-specific Health and Safety Plan (HASP) preparation; Quality Assurance Project Plan (QAPP) preparation; US Army Corps of Engineers (USACE), LACFCD, and municipal Access and Encroachment Permit procurement; receiving and stormwater outfall water quality monitoring; Geographic Information System (GIS) based outfall inventory preparation; and Non-Stormwater Discharge (NSWD) outfall screening. Ongoing services include project management, meeting coordination, weather tracking, monitoring event coordination, water quality sample collection from two fixed and six rotating stormwater outfall sites for two dry and three storm events per year, preparing field logs and site assessment photos, laboratory coordination and Quality Assurance/Quality Control (QA/QC), data management, semi-annual data reporting in California Environmental Data Exchange Network (CEDEN) format, draft and final MS4 Permit consolidated annual report preparation.

Project Tasks

Preparation of project-specific Health and Safety Plan (HASP)
Preparation of Quality Assurance Project Plan (QAPP)
Procurement of permits from USACE, LACFCD, and municipalities
Receiving and monitoring stormwater outfall water quality
Preparation of GIS-based outfall inventory
Screening for Non-Stormwater Discharge (NSWD) outfalls
Project management and meeting coordination
Weather tracking and monitoring event coordination
Water quality sample collection from outfall sites
Preparation of field logs and site assessment photos
Laboratory coordination and QA/QC
Data management and semi-annual reporting in CEDEN format
Draft and final MS4 Permit consolidated annual report preparation.